baber/WOPTO huggingface dataset:
Patent GB-1596897-A (GB)
Title: Process for the preparation of naphthalene-1,3,6-trisulphonic acid
IPC: C07C301/00
Filed: 1978-04-18
Abstract: Naphthalene-1,3,6-trisulphonic acid is prepared by sulphating naphthalene at elevated temperature using 2 part-quantities of sulphuric acid and oleum. The naphthalene is initially introduced in liquid form at 80-120 DEG C and 1.0-3.0 mol of sulphuric acid are added per mol of naphthalene at 20-120 DEG C. The reaction mixture is maintained at 80-120 DEG C for 0.1 - 5 hours and is then heated to 130-170 DEG C and kept at this temperature for 0.2 - 5 hours. The mixture is then cooled to 20-120 DEG C and 1.0-1.5 mol of sulphuric acid are added per mol of naphthalene. 2.5-2.9 mol of SO3 per mol of naphthalene is then added in the form of oleum at 40-100 DEG C and the mixture is heated to 140-160 DEG C and kept at this temperature for 1 - 4 hours. 0.01-1.0 mol of SO3 per mol of naphthalene employed is then added in the form of oleum at 60-160 DEG C and the mixture is then stirred at 140-160 DEG C for 0.5 - 4 hours. The product which is obtained can be used for preparing T acid and H acid.
Patent GB-142696-A (GB)
Title: Improvements in pistons and packing rings therefor
IPC: F16J9/20
Filed: 1919-06-17
Abstract: 142,696. Eekelbarger, Z. June 17, 1919. Piston packing.-A split packing-ring 7, which is especially applicable to the piston of an internal-combustion engine, is formed with an internal groove engaging a flange 6 on the piston head, which is of reduced diameter. The packing-ring extends beyond the piston head and is formed with a bevelled surface 14. The packing is expanded by the fluid pressure and is also pressed on to a seating 16 on the upper surface of the flange 6.
Patent GB-1011680-A (GB)
Title: Improvements in or relating to load releasing devices
Inventor: DENNE ALAN EDWARD
IPC: F16B31/00
Filed: 1963-04-18
Abstract: 1,011,680. Bolting. WESTLAND AIRCRAFT Ltd. Feb. 4, 1964 [April 18, 1963], No. 15238/63. Heading F2H. [Also in Division F3] In a device which allows a section of a vehicle or vessel to be released from the main body by a predetermined signal, a member 2 associated with the main body and a member 3 associated with the section to be released, are secured by fusible bolts 1 made of nylon which are melted by passing current through electrical resistance heating wires 4 coiled around the bolts and attached to electric cables 5, 6. The axial length of the coil of the wire 4 is substantially twice the diameter of the bolt. In a modification, fusible unthreaded members are provided. The device may be energized remotely by a radio or photo-sensitive device.
Patent GB-789392-A (GB)
Title: Improvements in or relating to epoxide resins
Inventor: DAVIS ANTHONY CHARLES
IPC: C08G59/24
Filed: 1955-05-26
Abstract: Epoxide resins are prepared by reacting more than 2 mols. of epichlorhydrin or a -dichlorhydrin with 1 mol. of a dihydric phenol containing three or four phenylene groups joined in a chain by methylene groups, one phenolic hydroxyl group being attached to each terminal nucleus.  In Example (1), bis-hydroxybenzyl benzene was dissolved in a mixture of epichlorhydrin and 95 per cent alcohol. Caustic soda was added gradually with continuous stirring.  Alcohol and excess epichlorhydrin were distilled off and toluene and water stirred in.  The separated toluene solution was concentrated in vacuum.  The resulting resin cured with diethylenetriamine yielded a product with high impart strength useful for sticking aluminium to aluminium.  Example (2) is similar, using 4,41 - bis - hydroxybenzyl-diphenylmethane as the dihydric phenol.
Patent GB-1109241-A (GB)
Title: Filter
IPC: B01D35/147
Filed: 1965-04-09
Abstract: 1,109,241. Filter. MARVEL ENGINEERING CO. 9 April, 1965 [10 April, 1964], No. 15295/65. Heading B1D.  A filter comprises a hollow paper filter element 16 contained within and fixed to a housing 1 such that there is a surrounding space between the element and the housing wall, an inlet 3 to the housing communicating directly with the said surrounding space and an outlet 2 communicating with the inside of the element, a valve 20 which opens into the element when the pressure in the surrounding space exceeds the pressure inside the element by a predetermined value so that liquid can bypass the filter wall of the element and pass into the element through the valve, and an indicator 29 which has fingers with portions located outside the housing which indicator is connected via rod 22 to valve 20 whereby an indication is provided when the valve is open and the liquid is being bypassed. The filter may also comprise cylindrical filter elements 9a and 9b, a magnetic extension of rod 22 into the element for retaining metal particles not retained by the filter elements, and a ring 32 movable 'by indicator 29 as the valve opens or an electrical switch activated by indicator 29 to operate visual or audible signals adjacent or remote from the filter housing as the valve opens.
Patent GB-110413-A (GB)
Title: An Improved Process of Distillation and Still for carrying out the same.
IPC: C10C1/04
Filed: 1916-10-28
Abstract: 110,413. Simon - Carves, Ltd., and Brown, J. H. Oct. 28, 1916 Hydrocarbons, distilling; volatile liquids, recovering: column stills.--In distilling absorbed products from an absorbent by heating the saturated absorbent to a temperature above the boiling-point of the highestboiling absorbed product and passing the heated liquid through a column still, the liquid is re-heated during its passage through the still. For this purpose, a column still of ordinary construction is provided with one or more re-heaters consisting of a steam coil e arranged around a splashing cascade f<1> so that the liquid rises over the steam coil and overflows at the top of the re-heating chamber into the cascade. From the last tray of the still the hot absorbent flows to a heat-exchanger g containing a coil j in which the saturated absorbent is preheated. The invention is applied for debenzclizing oils that have been used for washing coal gas, and in liquid-extraction plants generally.
Patent GB-460408-A (GB)
Title: Improvements in or relating to superheterodyne radio receivers
IPC: H03D7/02
Filed: 1936-06-02
Abstract: 460,408. Valve circuits for wireless reception. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 2, 1936, No. 15410. Convention date, Aug. 19, 1935. [Class 40 (v)] In a superheterodyne receiver using a diode first detector a resist. ance 3 is arranged in series with the inter. mediate frequency output 2 interconnecting the anode and cathode of the diode. The input and local oscillating circuits 1, 6 serially arranged are connected in series with a condenser 4 in parallel with the resistance 3, Fig. 4, or are connected in series with the resistance 3 which is then in parallel with the condenser 4, Fig. 3.
Patent GB-592499-A (GB)
Title: Tractor mounted crane
IPC: B66C23/36
Filed: 1944-08-14
Abstract: 592,499. Jib-cranes. SHOEMAKER, R. C. Aug. 14, 1944, No. 15468. [Class 78(iv)] A crane mounted on a tractor provided with a flexibly mounted endless track driving unit comprises a boom mounted for rotation about a vertical axis, a mast connected to the upper end of the boom and mounted for rotation about a horizontal axis on the tractor and back stay means connecting the upper end of the mast directly to the endless track unit, or to counterweights mounted on the unit, at a point remote from the boom support. In the embodiment shown, the tractor is mounted on a frame 10, which is rotatably mounted on the rear axle 13, Fig. 1, and suspended by a spring 14, Fig. 8, mounted on the frames 11 of the endless tracks 12. The jib 44 is pivotally mounted by pins 45 on a slewing gear 43, Fig. 6, rotatably mounted by rollers 47, 48 on a housing 27, and is suspended by ropes 55 from a mast 66 pivotally mounted on brackets 16 secured to the tractor body. The housing 27 is detachably mounted by bolts 28 on the brackets 16 and contains the crane operating gear. The mast is supported from the frames 11 by a bridle cable 68 passing round an equaliser block 69, the cable being secured to counterweights 63 mounted on the frames or alternatively secured directly to the frames 11. Power for operating the crane is derived from a power take-off shaft 19, Fig. 3, connected by a hand-controlled clutch 22 and gearing 25 to a pinion 26 meshing with a gear 29, Fig. 5, which in turn meshes with a gear 49, Fig. 6, these gears being keyed respectively with shafts 31, 53 which are connected through clutches and gearing with the slewing gear 43 and the hoisting and luffing drums 51, 52. When it is necessary for two hoist lines to run through the end of the jib, the end of the cable 55 is removed from the drum 52 and trained through a fair lead 64, Fig. 1, to a handdriven drum 65 on the mast 66, and the second hoisting cable wound on the drum 52 and trained through a. second sheave mounted on the end of the jib. When the jib is under load, the support 73 for the block 72 and fair lead 64 may be maintained in vertical alignment with the slewing axis of the jib by adjusting the length of the cable 68 by a ratchet hoist 74, Figs. 1, 7. To remove the crane from the tractor, the jib is lowered to a horizontal position so as to be supported by the slewing gear 43 and the cable 55 disconnected from the drum 52 and placed on the drum 65. The cable 55 is now tightened by this drum to raise the jib slightly, and jack legs 79 lowered to the ground. The bolts 28 securing the housing 27 to the brackets 16 are then removed and the cable 55 slackened to lower the jib into contact with the gear 43. The weight of the jib causes the housing 27 to pivot about' the jack legs until the end of the jib rests on the ground. The cable 55 is now removed from the drum 65 and the tractor driven forwardly from the hoist.
Patent GB-244654-A (GB)
Title: Props for mines
IPC: E21D15/52
Filed: 1925-06-15
Abstract: 244,654. Wilke, C. June 15, 1925. Mine props. - Wooden mine props are provided with a two-part conical socket C adapted to be clamped on the end of the prop in such a manner that the prop is driven into the socket under heavy pressure. The socket is clamped to the prop by a ring R and clamping screws S in a two-part ring K.
Patent GB-1048834-A (GB)
Title: Production of furnace carbon black
IPC: C09C1/50
Filed: 1963-04-19
Abstract: Furnace carbon black is made by thermal decomposition of a fluid hydrocarbon feedstock in a process wherein the quality of at least one property of the carbon black, for example the modulus in rubber, is adjusted by introducing a substance comprising an alkali metal into the furnace, the adjustment being effected by introducing an amount of the alkali metal substance sufficient to effect only a part of the quality adjustment and maintaining the carbon black in the reaction zone of the furnace for a period of time longer than that necessary to produce a tar-free carbon black and sufficient to complete quality adjustment.  The alkali metal may be potassium, for example as potassium chloride, and may be used in an amount of from 1 to 200 parts by weight of potassium per million parts by weight of feedstock.  Other compounds referred to are sulphates, nitrates, carbonates, bromides, iodides, acetates, naphthenates, oleates, lanolates and metal alkyls.  The carbon black may be maintained in the reaction zone for a period of time which is 1.5 to 9 times the period of time necessary to produce a tar-free carbon black. Reference has been directed by the Comptroller to Specification 886,523.
Patent GB-258327-A (GB)
Title: Improvements in apparatus for the manufacture of briquettes
IPC: C10L5/02
Filed: 1925-06-15
Abstract: 258,327. Illingworth, S. R., and Illing- worth Carbonization Co., Ltd. June 15, 1925. Retorts. - An apparatus for coking and briquetting coal comprises a drum with external moulds, a coverplate extending over the moulds during the preliminary coking period, a casing surrounding the drum, and means for heating the drum and casing. Moulds d on a drum a are filled with coal which passes from a hopper n through a rotary valve o and through a passage p in a cover-plate q. The drum is supported upon rollers within a casing c enclosed in a heat non-conducting jacket g. The drum is heated by tubes e fitted with gas burners, the burnt gases passing through a return pipe f into a flue leading to the space h between the casing c and jacket g and finally away to a stack. Distillation products pass into a space above the plate q and away by a pipe j. The moulded briquettes pass into a cooling chamber r fitted with a rotary or reciprocating valve t.
Patent GB-931619-A (GB)
Title: Improvements in or relating to electromagnetic clutches
IPC: F16D27/112
Filed: 1962-04-24
Abstract: 931,619. Friction clutches. PINTSCH BAMAG A.G. April 24, 1962 [April 25, 1961], No. 15515/62. Class 80 (2). An electromagnetic clutch comprises a stationary solenoid 5 which, when energized, draws an armature 6, secured to a driving V-pulley 4, against a pole ring 10 attached by a non-magnetic sleeve 12 to the output shaft 7. The ring 10 is formed with cut-outs 10a providing pole pairs when the solenoid is energized. The pulley consists of two discs 4a, 4b bolted to an intermediate disc 9 secured to the armature 6, and the pulley is mounted on the sleeve 12 by a bearing 16.
Patent GB-729759-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J9/00
Filed: 1952-06-20
Abstract: The invention comprises cyclopentanophenanthrene compounds of the general formula <FORM:0729759/IV (b)/1> wherein R represents hydrogen or an alkyl or acyl radical and R1 represents the radical =CHO Acyl or represents <FORM:0729759/IV (b)/2> , and a process for the preparation of a 3-hydroxy-, 3-alkoxy- or 3-acyloxy-7,8-nuclear mono-unsaturated steroid containing a substituent of the formula <FORM:0729759/IV (b)/3> at the 17-position by selectively oxidizing a 7 : 8-nuclear monounsaturated steroid having a 22 : 23-alkenyl-type C17 substituent with ozone (preferably in a substantially inert solvent) and reductively cleaving the resulting ozonide to form the C17 aldehyde substituent.  The process may be extended either by acylating the C17 aldehydic substituent to form an enol ester and the resulting enol ester may be oxidized, e.g. with ozone, to form a 20-ketone, or by oxidizing the C17 p  aldehydic substituent, e.g. with chromic acid in strong sulphuric acid, to form the corresponding carboxylic acid.  Compounds having a 22 : 23-alkenyl type C17 substituent which may be used in the above process are 5-dihydroergosterol and its esters and ethers such as 5-dihydroergosteryl acetate, a -spinasterol and its ethers and esters, and chondrillasterol and its esters and ethers.  Suitable esters are the acetate, propionate and benzoate esters and suitable ethers are the methyl and ethyl ethers.  The reaction with ozone may be carried out in an inert solvent such as chloroform or methylene chloride, and a tertiary base such as pyridine, quinoline or triethylamine may be present.  The reaction temperature may be as low as -80 DEG  C., the preferred temperature being about 0 DEG  C.  The ozonide may be reductively cleaved with acetic acid and zinc dust. Esters of the acids derived from the 17-aldehydic compounds are also referred to.  In the examples 3b -acetoxybisnorallo-7-cholenaldehyde and the semicarbazone thereof, the enol acetate of 3b -acetoxybisnorallo-7-cholenaldehyde, 3b -acetoxyallo-7-pregnen-20-one and the semicarbazone thereof and 3b -acetoxybisnorallo-7-cholenic acid are prepared.
Patent GB-1381738-A (GB)
Title: Cheese flavour -amines-
IPC: A23L27/20
Filed: 1972-04-05
Abstract: 1381738 Cheese flavour UNILEVER Ltd 5 April 1972 [8 April 1971] 15596/72 Heading A2B Ripe cheese, in particular cheddar and Emmenthaler, flavours include in their composition synthetic alkyl amines having 3-5 carbon atoms. A mixture of amino acids, particularly as set forth in Specification 1381655, may also be present. Additional constituents for Cheddar flavouring may be selected from alkanoic acids having 2-10 carbon atoms of which at least 50% have more than 4 carbon atoms, 2-alkanones having 5-13 carbon atoms, or precursors thereof, succinic acid, and known cheese flavour ingredients selected from 2-oxoalkanoic acids having 2-6 carbon atoms, 2- oxoalkane dioic acids having 4-5 carbon atoms, methyl and ethyl esters of alkanoic acids having 4-10 carbon atoms, aldehydes having 2-10 carbon atoms, and methional. Additional constituents for Emmenthal flavouring may be selected from synthetic aldehydes having 7-9 carbon atoms and containing a phenyl group, and known cheese flavour ingredients selected from alkanoic acids having 2-8 carbon atoms, 2-alkanones having 5-7 carbon atoms, or precursors thereof, alkanals having 2-6 carbon atoms, diacetyl, methional, dimethyl sulphide, 2-oxo alkanoic acids having 2-6 carbon atoms, 2-oxoalkanedioic acids having 4-5 carbon atoms, and methyl and ethyl esters of alkanoic acids having 4-10 carbon atoms.
Patent GB-757259-A (GB)
Title: Improvements in the manufacture of bearing liners
IPC: B29C45/26
Filed: 1954-05-26
Abstract: 757,259. Bearing bushes. THOMSON, J. B. May 26, 1954 [June 30, 1953], No. 15621/54. Class 12 (1). [Also in Group V] A bearing liner comprises a substantially cylindrical member 14 provided with an axiallyextending slit 16 and formed of a resilient plastic composition such as nylon, polyethylene or tetrafluoroethane polymer. The end portions of the slit are axial and are connected at 20 to a central helical portion 22. Circumferentially extending lubricant slots 24 are provided and are connected by shallow grooves formed on the inside or outside of the liner 14. An outer supporting metal sleeve 10 has flanged ends 12 and an aperture 26 through which lubricant is supplied. In a modification the liner is slotted, alternate slots extending from opposite ends and over-lapping each other.
Patent GB-333636-A (GB)
Title: Improvements relating to the feed mechanism of nasmith combing machines
IPC: D01G19/08
Filed: 1929-05-21
Abstract: 333,636. Fine Cotton Spinners' & Doublers' Association, Ltd., and Haydock, J. May 21, 1929. Combing-machines. - In a Nasmith combinamachine having feed mechanism of the type wherein a partial reverse rotation is imparted to the feed roller or rollers as the nipper plate necedes thereby drawing within the nip of the roller and the nipper plate or between the two rollers long fibres of the material being combed and so preventing such fibres being rejected as waste, a ratchetwheel is mounted on the end of the feed roller or rollers and is engaged by a pawl on the backward movement of the nipper plate to cause the reverse rotation. The feed roller A, Fig. 2, is rotated forwardly on forward movement of the nipper plate A<1> through the usual driving mechanism comprising a ratchet wheel B on the roller-shaft a and a pawl C mounted on the casing D, the latter being oscillated through levers E, F connected at H to the machine frame, an adjustable bayonet member G serving to depress the tail c of the pawl C and hold it out of engagement with the wheel B to stop the rotation. The reverse rotation is imparted through a second ratchet-wheel B<1>, Fig. 1, mounted on the opposite end of the roller shaft and actuated through a pawl C<1>, corresponding members E', F', G<1> being mounted as shown. Alternatively both ratchet-wheels are arranged at one end of the roller A, and if desired the two pawls C, C<1> may be controlled by a single member G, Fig. 4. In a modification of this form the amount of reverse rotation of the roller A through the pawl C<1> and ratchet-wheel B<1> is controlled by an adjustable leg K, Fig. 5, which may be attached to the arm F and which serves to remove the pawl C<1> from the wheel B<1>. In a further modification, the ratchet-wheel B and pawl C employed for the forward rotation also produce the reverse rotation. The fibres are fed forward by clockwise rotation of the wheel B by the pawl C. Just before the nipper plate A<1> reaches the foremost position the pawl C passes under a stud k<1> carried on a bracket k, Fig. 8. As the nipper plate recedes the pawl is held in engagement. with the ratchet-wheel and the two rotate together in a reverse direction until the pawl is clear of the stud k<1>, the pawl then tripping over the ratchet-teeth.
Patent GB-1386157-A (GB)
Title: Electrical switch contact
IPC: H01H1/023
Filed: 1972-04-05
Abstract: 1386157 Pd-Al contact material FUJITSU Ltd 5 April 1972 [15 April 1971] 15679/72 Heading C7A The contact material, in an electrical switch contact, is an alloy consisting of 45-85 atom per cent Pd and 55-15 atom per cent Al.
Patent GB-355331-A (GB)
Title: Improvements in or relating to the treatment of textile materials
IPC: D06M11/20
Filed: 1930-05-21
Abstract: Insoluble metal compounds are fixed on or in textile materials made of or containing natural silk or artificial filaments or fibres by applying from a neutral or acid bath a reagent containing the metallic radicle of the insoluble compound, and then applying the fixing agent by mechanical impregnation without intermediate washing. Mechanical impregnation is defined in the parent Specification as any method of impregnation in which, as opposed to a bath treatment, the whole quantity of reagent is supplied to the materials in such an amount of vehicle as can be completely retained by them; impregnation by means of a padding mangle or by spraying is instanced.  When treating materials made of or containing cellulose esters or ethers, the reagent containing the metallic radicle is preferably applied under such conditions that swelling of the material occurs; thus, swelling agents such as those mentioned in Specification 281,084,[Class 2 (ii), Cellulose &c.], e.g. thiocyanates or formic, acetic or lactic acid, may be added to the bath.  The method may be applied to cellulose ester materials which are to be saponified before or after the fixation, e.g. before or after weighting, as described in Specification 319,420 [Class 2 (ii), Cellulose &c.]; saponification may be effected as described in Specifications 316,521, [Class 2 (ii), Cellulose &c.], and 318,468, [Class 2 (ii), Cellulose &c.], or the fixing solution may contain a saponifying agent.  The materials may be coloured at any suitable stage with various direct, acid, and mordant colouring materials, such as are mentioned in the parent Specification, including mordant dyes of the anthracene series; cellulose ester or ether materials mordanted or weighted as described above also have affinity for basic dyes and dispersed insoluble dyes.  In many cases the colourations are dischargeable, e.g. with reduction discharges.  According to the examples, (1) fabric having a warp of cellulose acetate and a weft of degummed natural silk is suspended in a solution of stannic chloride and ammonium thiocyanate, and then passed without intermediate washing through a pad mangle containing a solution of sodium triphosphate; it is then batched and washed; (2) cellulose acetate fabric is steeped in a solution of stannic chloride and barium and ammonium thiocyanates, passed through nipping rollers, batched, and then passed without washing through a pad mangle containing trisodium phosphate solution; it is then batched again and washed. Reference is made also to the treatment of materials made of or containing cellulose formate, propionate, and butyrate, methyl, ethyl, and benzyl cellulose, the condensation products of cellulose and glycols, &c., and regenerated cellulose.